Eighteen upsets took place among the major MMA organizations in November, making it one of the biggest months for underdogs in recent history. The list is capped off by a huge victory for Michihiro Omigawa in the Sengoku organization in Japan over the -600 favorite Hatsu Hioki. Following in second place is Brock Larson and his upset loss to the unheralded Brian Foster at UFC 106. This marks the second straight enormous oddsmaker’s upset of Larson, who was unfortunately cut from the UFC after this latest outing. Other big names making the list were Mike Swick, Mike Brown, and Brandon Vera who were all betting favorites heading into their November bouts.

Favorites won just 62% of major MMA bouts in November, leaving room for this extensive list of upsets across the organizations. Ten of the upsets took place in the UFC, four in the WEC, three in Sengoku, and just one in Strikeforce. Half of the upsets were via knockout or TKO, five came by decision, and four were delivered by submission.

Rank

Odds

Loser
Name

Odds

Winner
Name

Result

Fight Date

Event Name

1

-600

Hatsu Hioki

+425

Michihiro Omigawa

Decision

11/7

Sengoku 11

2

-563

Brock Larson

+388

Brian Foster

Round 2 KO/TKO

11/21

UFC 106

3

-308

Matthew Riddle

+248

Nick Osipczak

Round 3 KO/TKO

11/14

UFC 105

4

-290

Mike Swick

+223

Dan Hardy

Decision

11/14

UFC 105

5

-245

Jorge Santiago

+195

Mamed Khalidov

Round 1 KO/TKO

11/7

Sengoku 11

6

-230

Marcus Davis

+210

Ben Saunders

Round 2 KO/TKO

11/21

UFC 106

7

-191

Aaron Riley

+165

Ross Pearson

Round 2 KO/TKO

11/14

UFC 105

8

-183

Diego Nunes

+148

L.C. Davis

Decision

11/18

WEC 44

9

-179

Jesse Taylor

+139

Luke Rockhold

Round 1 Submission

11/6

Strikeforce Challengers 4

10

-176

Jake Rosholt

+156

Kendall Grove

Round 1 Submission

11/21

UFC 106

11

-163

Satoru Kitaoka

+133

Jorge Masvidal

Round 2 KO/TKO

11/7

Sengoku 11

12

-153

Rob McCullough

+128

Karen Darabedyan

Decision

11/18

WEC 44

13

-148

Jared Hamman

+118

Alexander Gustafsson

Round 1 KO/TKO

11/14

UFC 105

14

-143

Danny Castillo

+118

Shane Roller

Round 3 Submission

11/18

WEC 44

15

-140

Brandon Vera

+117

Randy Couture

Decision

11/14

UFC 105

16

-137

Mike Thomas Brown

+116

Jose Aldo

Round 2 KO/TKO

11/18

WEC 44

17

-129

Anthony Johnson

+103

Josh Koscheck

Round 2 Submission

11/21

UFC 106

18

-123

Denis Kang

+103

Michael Bisping

Round 2 KO/TKO

11/14

UFC 105

Tapology’s MMA odds analysis uses posted lines across more than five of the major sportsbook websites. The final lines available immediately before the start of each fight are used. Bouts from Affliction, Dream, EliteXC, Sengoku, Strikeforce, UFC, and WEC are included.